A device which can dispense at least one pesticide which comprises a base unit (10) containing tanks (40, 42) for the pesticides and a wand (100) including valves (212, 134) to control dispensing of the pesticides, an electrode (280) to place an electrostatic charge on one pesticide, and a pulsing unit...http://www.google.fr/patents/US5064123?utm_source=gb-gplus-shareBrevet US5064123 - Insecticide dispensing apparatus